<template>
  <div class="app-container">
    <div class="filter-container">
      <el-input v-model="listQuery.username" placeholder="用户账号" style="width: 200px;" class="filter-item" @keyup.enter.native="handleFilter" />
      <el-input v-model="listQuery.name" placeholder="用户姓名" style="width: 200px;" class="filter-item" @keyup.enter.native="handleFilter" />
      <el-button v-waves class="filter-item" type="primary" icon="el-icon-search" @click="handleFilter">
      条件查询
      </el-button>
      <el-button class="filter-item" style="margin-left: 10px;" type="primary" icon="el-icon-edit" @click="handleCreate">
        新建用户
      </el-button>
      <!-- <el-button v-waves :loading="downloadLoading" class="filter-item" type="primary" icon="el-icon-download" @click="handleDownload">
        Export
      </el-button> -->
      <!-- <el-checkbox v-model="showReviewer" class="filter-item" style="margin-left:15px;" @change="tableKey=tableKey+1">
        reviewer
      </el-checkbox> -->
    </div>

    <el-table
      :key="tableKey"
      v-loading="listLoading"
      :data="list"
      border
      fit
      highlight-current-row
      style="width: 100%;"
      @sort-change="sortChange"
    >
      <el-table-column label="用户编号"   align="center" width="80" >
        <template slot-scope="{row}">
          <span>{{ row.id }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" width="150px"  align="center" >
        <template slot-scope="{row}">
          <span>{{formatDateTime(row.createdAt)}}</span>
        </template>
      </el-table-column>
      <el-table-column label="姓名" width="110px" align="center">
        <template slot-scope="{row}">
          <span>{{ row.name }}</span>
        </template>
      </el-table-column>
      <el-table-column label="用户账号" width="110px" align="center">
        <template slot-scope="{row}">
          <span>{{ row.username }}</span>
        </template>
      </el-table-column>
      <el-table-column label="用户邮箱" width="150px" align="center">
        <template slot-scope="{row}">
          <span>{{ row.email }}</span>
        </template>
      </el-table-column>
      <el-table-column label="手机号码" width="110px" align="center">
        <template slot-scope="{row}">
          <span>{{ row.phone }}</span>
        </template>
      </el-table-column>
      <el-table-column label="最近更新" width="150px" align="center">
        <template slot-scope="{row}">
          <span>{{  Date(row.updatedAt) | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="用户角色" class-name="status-col" width="100">
        <template slot-scope="{row}">
          <el-tag :type="row.status | statusFilter">
            {{ row.role == 'admin'?'管理员':'社团管理员'  }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column label="Actions" align="center" width="230" class-name="small-padding fixed-width">
        <template slot-scope="{row,$index}">
          <el-button type="primary" size="mini" @click="handleUpdate(row)">
            编辑
          </el-button>
          <el-button v-if="row.status!='deleted'" size="mini" type="danger" @click="handleDelete(row,$index)">
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="listQuery.page" :limit.sync="listQuery.pageSize" @pagination="getList" />

    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form ref="dataForm" :rules="rules" :model="temp" label-position="left" label-width="70px" style="width: 400px; margin-left:50px;">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="temp.username" type="text" :required="true" />
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="temp.password" type="password" :required="true" />
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="temp.name" type="text" :required="true" />
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="temp.email" type="email" :required="true" />
        </el-form-item>
        <el-form-item label="手机号" prop="phone">
          <el-input v-model="temp.phone" type="number" :required="true" />
        </el-form-item>
        <el-form-item label="用户角色">
          <el-select v-model="temp.role" class="filter-item" placeholder="Please select">
            <el-option v-for="item in user_type" :key="item.val" :label="item.des" :value="item.val"  />
          </el-select>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">
         关闭
        </el-button>
        <el-button type="primary" @click="dialogStatus==='create'?createData():updateData()">
        确定
        </el-button>
      </div>
    </el-dialog>

    <el-dialog :visible.sync="dialogPvVisible" title="Reading statistics">
      <el-table :data="pvData" border fit highlight-current-row style="width: 100%">
        <el-table-column prop="key" label="Channel" />
        <el-table-column prop="pv" label="Pv" />
      </el-table>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogPvVisible = false">Confirm</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import { fetchList, fetchPv, createArticle, updateArticle,deleteArticle } from '@/api/users'
import waves from '@/directive/waves' // waves directive
import { parseTime } from '@/utils'
import Pagination from '@/components/Pagination' // secondary package based on el-pagination

const user_type= [
  { des: '社团管理员', val: 'member' },
  { des: '管理员', val: 'admin' },
]
const calendarTypeOptions = [
  { key: 'CN', display_name: 'China' },
  { key: 'US', display_name: 'USA' },
  { key: 'JP', display_name: 'Japan' },
  { key: 'EU', display_name: 'Eurozone' }
]

// arr to obj, such as { CN : "China", US : "USA" }
const calendarTypeKeyValue = calendarTypeOptions.reduce((acc, cur) => {
  acc[cur.key] = cur.display_name
  return acc
}, {})

export default {
  name: 'ComplexTable',
  components: { Pagination },
  directives: { waves },
  filters: {
    statusFilter(status) {
      const statusMap = {
        published: 'success',
        draft: 'info',
        deleted: 'danger'
      }
      return statusMap[status]
    },
    typeFilter(type) {
      return calendarTypeKeyValue[type]
    }
  },
  data() {
    return {
      tableKey: 0,
      list: null,
      total: 0,
      listLoading: true,
      listQuery: {
        page: 1,
        pageSize: 10,
        importance: undefined,
        type: undefined,
        username: '',
        name:''
      },
      importanceOptions: [1, 2, 3],
      calendarTypeOptions,
      user_type,
      sortOptions: [{ label: 'ID Ascending', key: 'A' }, { label: 'ID Descending', key: 'DA' }],
      statusOptions: ['published', 'draft', 'deleted'],
      showReviewer: false,
      temp: {
        id: undefined,
        username:undefined,
        password:'',
        email:undefined,
        phone:undefined,
        role: '',
        name:''
      },
      dialogFormVisible: false,
      dialogStatus: '',
      textMap: {
        update: '在线编辑',
        create: '新建用户'
      },
      dialogPvVisible: false,
      pvData: [],
      rules: {
        username: [{ required: true, message: '用户名必须填写', }],
        name: [{ required: true, message: '姓名必须填写', }],
        password: [{ required: true, message: '用户密码必须填写', }],
        email: [{ required: true, message: '邮箱不能为空', }],
        phone: [{ required: true, message: '手机号不能为空', }]
      },
      downloadLoading: false
    }
  },
  created() {
    this.getList()
  },
  methods: {
    getList() {
      this.listLoading = true
      fetchList(this.listQuery).then(response => {
        this.list = response.data.records
        this.total = response.data.total
 
        // Just to simulate the time of the request
        // setTimeout(() => {
          this.listLoading = false
        // }, 1.5 * 1000)
      })
   
    },
    formatDateTime(dateTime) {
      const d = new Date(dateTime)
      const year = d.getFullYear()
      const month = ('0' + (d.getMonth() + 1)).slice(-2)
      const day = ('0' + d.getDate()).slice(-2)
      const hour = ('0' + d.getHours()).slice(-2)
      const minute = ('0' + d.getMinutes()).slice(-2)
      return `${year}-${month}-${day} ${hour}:${minute}`
    },
    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    handleModifyStatus(row, status) {
      this.$message({
        message: '操作Success',
        type: 'success'
      })
      row.status = status
    },
    sortChange(data) {
      const { prop, order } = data
      if (prop === 'createdAt') {
        this.sortByID(order)
      }
    },
    sortByID(order) {
      if (order === 'ascending') {
        this.listQuery.sort = 'A'
      } else {
        this.listQuery.sort = 'DA'
      }
      this.handleFilter()
    },
    resetTemp() {
      this.temp = {
        id: undefined,
        username: undefined,
        password: '',
        email: undefined,
        phone: undefined,
        role:'member',
        name:''
      }
    },
    handleCreate() {
      this.resetTemp()
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    createData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          this.temp.id = parseInt(Math.random() * 100) + 1024 // mock a id
          createArticle(this.temp).then(() => {
            this.list.unshift(this.temp)
            this.dialogFormVisible = false
            this.$notify({
              title: '添加成功了',
              message: '添加用户成功！',
              type: 'success',
              duration: 2000
            })
            this.resetTemp()
          })
        }
      })
    },
    handleUpdate(row) {
      this.temp = Object.assign({}, row) // copy obj
      this.temp.timestamp = new Date(this.temp.timestamp)
      this.dialogStatus = 'update'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    updateData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          const tempData = Object.assign({}, this.temp)
          tempData.timestamp = +new Date(tempData.timestamp) // change Thu Nov 30 2017 16:41:05 GMT+0800 (CST) to 1512031311464
          updateArticle(tempData).then(() => {
            const index = this.list.findIndex(v => v.id === this.temp.id)
            this.list.splice(index, 1, this.temp)
            this.dialogFormVisible = false
            this.$notify({
              title: '更新成功',
              message: '恭喜你，更新成功了',
              type: 'success',
              duration: 2000
            })
            this.resetTemp()
          })
        }
      })
    },
    handleDelete(row, index) {
   deleteArticle(row).then(() => {
            this.$notify({
              title: '操作成功',
              message: '删除用户信息成功！',
              type: 'success',
              duration: 2000
            })
            this.list.splice(index, 1)
          })
      
    },
    handleFetchPv(pv) {
      fetchPv(pv).then(response => {
        this.pvData = response.data.pvData
        this.dialogPvVisible = true
      })
    },
    handleDownload() {
      this.downloadLoading = true
      import('@/vendor/Export2Excel').then(excel => {
        const tHeader = ['timestamp', 'title', 'type', 'importance', 'status']
        const filterVal = ['timestamp', 'title', 'type', 'importance', 'status']
        const data = this.formatJson(filterVal)
        excel.export_json_to_excel({
          header: tHeader,
          data,
          filename: 'table-list'
        })
        this.downloadLoading = false
      })
    },
    formatJson(filterVal) {
      return this.list.map(v => filterVal.map(j => {
        if (j === 'timestamp') {
          return parseTime(v[j])
        } else {
          return v[j]
        }
      }))
    },
    getSortClass: function(key) {
      const sort = this.listQuery.sort
      return sort === `+${key}` ? 'ascending' : 'descending'
    }
  }
}
</script>
